diff --git a/changelog.d/update-policyengine-bundle-4.20.3.changed.md b/changelog.d/update-policyengine-bundle-4.20.3.changed.md
new file mode 100644
index 000000000..2ccdb6bc9
--- /dev/null
+++ b/changelog.d/update-policyengine-bundle-4.20.3.changed.md
@@ -0,0 +1 @@
+Update the PolicyEngine bundle to 4.20.3.
diff --git a/pyproject.toml b/pyproject.toml
index 43a2ba643..b3db26b88 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ dependencies = [
     "policyengine_canada==0.96.3",
     "policyengine-ng==0.5.1",
     "policyengine-il==0.1.0",
-    "policyengine[models]==4.18.9",
+    "policyengine[models]==4.20.3",
     "pydantic",
     "pymysql",
     "python-dotenv",
diff --git a/uv.lock b/uv.lock
index 1b7cbb698..cb686f5dd 100644
--- a/uv.lock
+++ b/uv.lock
@@ -2461,7 +2461,7 @@ name = "pexpect"
 version = "4.9.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "ptyprocess", marker = "sys_platform != 'emscripten' and sys_platform != 'win32'" },
+    { name = "ptyprocess" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/42/92/cc564bf6381ff43ce1f4d06852fc19a2f11d180f23dc32d9588bee2f149d/pexpect-4.9.0.tar.gz", hash = "sha256:ee7d41123f3c9911050ea2c2dac107568dc43b2d3b0c7557a33212c398ead30f", size = 166450, upload-time = "2023-11-25T09:07:26.339Z" }
 wheels = [
@@ -2588,7 +2588,7 @@ wheels = [
 
 [[package]]
 name = "policyengine"
-version = "4.18.9"
+version = "4.20.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "diskcache" },
@@ -2602,9 +2602,9 @@ dependencies = [
     { name = "pydantic" },
     { name = "requests" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/5c/f0/452c855cdb162e19dfdeb2f04939b763ab98e4cf07ce2caf7a4c619ba34f/policyengine-4.18.9.tar.gz", hash = "sha256:4f7a58d9e88256076b474debda02c61019011215196c7f8b8265560486aa4ec7", size = 699680, upload-time = "2026-07-02T23:34:11.333Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/ad/fd/5271ee51d1f1a2c2c84841bd3fae37118258febdb59c156b5c268adf96de/policyengine-4.20.3.tar.gz", hash = "sha256:1d4741fd631ca160cf29da4ae31480842d973b130e341adadb798c115a92cd00", size = 724947, upload-time = "2026-07-09T20:16:52.094Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/d4/15/908db27608da1981b4b45992eb58ee616eeefd70abe5dfd62a0511edec6d/policyengine-4.18.9-py3-none-any.whl", hash = "sha256:fda8d3069151fcfe3e5bb2ac6fc2402b1d0de9600f296086c9a254406bb16f05", size = 210079, upload-time = "2026-07-02T23:34:10.119Z" },
+    { url = "https://files.pythonhosted.org/packages/e7/ce/1a2f5d6fe059d5521368585fc0b1ccb1428735a85065716bc3219509879f/policyengine-4.20.3-py3-none-any.whl", hash = "sha256:dc46f803c42550e9c9b99aed7e64c728c30b90ca4826ee18160a4f4feccbffd9", size = 221895, upload-time = "2026-07-09T20:16:50.52Z" },
 ]
 
 [package.optional-dependencies]
@@ -2616,7 +2616,7 @@ models = [
 
 [[package]]
 name = "policyengine-api"
-version = "3.43.7"
+version = "3.45.0"
 source = { editable = "." }
 dependencies = [
     { name = "a2wsgi" },
@@ -2683,7 +2683,7 @@ requires-dist = [
     { name = "markupsafe", specifier = ">=3,<4" },
     { name = "microdf-python", specifier = ">=1.0.0" },
     { name = "openai" },
-    { name = "policyengine", extras = ["models"], specifier = "==4.18.9" },
+    { name = "policyengine", extras = ["models"], specifier = "==4.20.3" },
     { name = "policyengine-canada", specifier = "==0.96.3" },
     { name = "policyengine-il", specifier = "==0.1.0" },
     { name = "policyengine-ng", specifier = "==0.5.1" },
@@ -2734,7 +2734,7 @@ wheels = [
 
 [[package]]
 name = "policyengine-core"
-version = "3.28.0"
+version = "3.30.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "dpath" },
@@ -2754,9 +2754,9 @@ dependencies = [
     { name = "standard-imghdr" },
     { name = "wheel" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/69/bf/d870af03abe76a64249fe9e95d7561c99c0484af1d3f3ae3773caa1c57d8/policyengine_core-3.28.0.tar.gz", hash = "sha256:3ae894577d8c40cb6c6d0f7d1df8ccdce2ee46aecbe52de0604e0af7ed454ecb", size = 484615, upload-time = "2026-06-26T13:38:51.09Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/c0/04/1934fe401c2f654b1e483c08cdbe4b9cd8007a57b4c89e6556cd2bec8cbf/policyengine_core-3.30.0.tar.gz", hash = "sha256:f922e096efa59e748210202b5023ba56d1a1326963e4dc7fed57030247308a35", size = 498324, upload-time = "2026-07-09T17:08:31.67Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/49/b6/efec8f49cc926cd8aa4f6767ae56d1d29e31fc42fc1efebed611cb8499c3/policyengine_core-3.28.0-py3-none-any.whl", hash = "sha256:069b83f76f636c138975ca85270500e47b81f191bc00da47090b237500eeabc0", size = 238479, upload-time = "2026-06-26T13:38:49.705Z" },
+    { url = "https://files.pythonhosted.org/packages/1d/fa/47e01d9f6c62e6fcacc1c9aa62d181e157bcb14beff7a1a4fe39974f52ea/policyengine_core-3.30.0-py3-none-any.whl", hash = "sha256:5e896b469ca1af04d783e84e033c7479344ba4c51a65e8fd043bf44c6b6cd646", size = 244334, upload-time = "2026-07-09T17:08:30.223Z" },
 ]
 
 [[package]]
@@ -2802,7 +2802,7 @@ wheels = [
 
 [[package]]
 name = "policyengine-us"
-version = "1.752.2"
+version = "1.764.6"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "microdf-python" },
@@ -2812,9 +2812,9 @@ dependencies = [
     { name = "tables" },
     { name = "tqdm" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/12/c0/5adc314e94f6b1063c4bb697b9ebe9d6777998b571c9fce166603ac9a408/policyengine_us-1.752.2.tar.gz", hash = "sha256:caf536ad9bef345379f664146798c17f51813403255b5c57a36d4d9b98b4f1db", size = 10648079, upload-time = "2026-07-01T14:50:55.523Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/6e/cc/9e65a9586069beab1f02102a23f7a0e6332f1a9c2d590cb9f0e68f9ac987/policyengine_us-1.764.6.tar.gz", hash = "sha256:9817d48abc5b7d690b8abe33047005e5cf40b71654a85a2534bb5e3bcf921f79", size = 11009555, upload-time = "2026-07-06T13:13:07.254Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/7f/85/bbee92f747a382779bae41a67da39fa5a8592d068853a64226279e6c32a7/policyengine_us-1.752.2-py3-none-any.whl", hash = "sha256:7e30468ae369ddd14e5d834c12cacbc5b5159c809b0990caf204c0747ef4c096", size = 12524440, upload-time = "2026-07-01T14:50:52.432Z" },
+    { url = "https://files.pythonhosted.org/packages/e2/5a/0566666f30ad06e416f0cf25b24bdee73acd71897fb2de3c0ac43b59e3e3/policyengine_us-1.764.6-py3-none-any.whl", hash = "sha256:2b2c5c02c26ab212270948db1f30129728b625fc6109fc9ca0c604b714546909", size = 13117921, upload-time = "2026-07-06T13:13:03.476Z" },
 ]
 
 [[package]]